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Advanced RAG

Every advanced retrieval technique as the answer to a specific failure — query understanding, retrieval loops, graphs, non-prose corpora, and when to stop retrieving altogether.

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39 lessons
  1. 1. Why Advanced RAG Is Not a List of Tricks6 min
  2. 2. The Corpus, and Five Queries Naive RAG Gets Wrong6 min
  3. 3. Query-Enhanced RAG: Rewriting, HyDE, and Step-Back6 min
  4. 4. Multi-Query RAG and RAG-Fusion: Reciprocal Rank Fusion7 min
  5. 5. Query Decomposition: Sub-Questions and Their Dependencies5 min
  6. 6. Query Routing and Adaptive RAG4 min
  7. 7. Parent Document Retrieval, Small-to-Big, and Auto-Merging5 min
  8. 8. RAPTOR: Recursive Summarisation into a Retrieval Tree5 min
  9. 9. Multi-Vector RAG I: Indexing Several Representations4 min
  10. 10. Multi-Vector RAG II: Late Interaction, ColBERT and ColPali5 min
  11. 11. Retrieval Loops Are Harnesses6 min
  12. 12. Corrective RAG: Grading the Evidence Before Using It5 min
  13. 13. Self-RAG: Reflection Tokens and the Cost of Owning a Model4 min
  14. 14. Multi-Hop and Recursive RAG5 min
  15. 15. Cross-References: When the Answer Is “See Section 7.2”6 min
  16. 16. The Query No Vector Index Can Answer4 min
  17. 17. GraphRAG in Depth5 min
  18. 18. Knowledge Graph RAG: Schemas, Cypher, and What You Already Have4 min
  19. 19. Graphs Without a Graph Database5 min
  20. 20. Agentic and Multimodal GraphRAG4 min
  21. 21. Table RAG: Grids, SQL, and the Hybrid Between Them5 min
  22. 22. RAG over Code4 min
  23. 23. Audio RAG: Transcripts, Timestamps, and Error Propagation5 min
  24. 24. Video RAG4 min
  25. 25. One Pipeline, Many Modalities4 min
  26. 26. Chunkless RAG: The Document as a Structure5 min
  27. 27. PageIndex and Vectorless RAG4 min
  28. 28. IndexRAG: Doing the Multi-Hop Work Offline4 min
  29. 29. The LLM Wiki Pattern4 min
  30. 30. Cache-Augmented Generation4 min
  31. 31. The Decision Boundary4 min
  32. 32. Pipeline Optimisation and the Latency Budget4 min
  33. 33. Caching: Three Caches With Three Different Failure Modes4 min
  34. 34. Cost Optimisation3 min
  35. 35. Monitoring and Debugging3 min
  36. 36. Common Pitfalls and What They Actually Are4 min
  37. 37. Security and Compliance4 min
  38. 38. Federated RAG: When the Data Cannot Move4 min
  39. 39. Capstone: The Decision Table6 min
  40. Key takeaways4 min
  41. How to get certified3 min
  42. Your certificate

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